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Let the number of males and females be 4x and 5x respectively. Percentage of children among females = 20% So, 80% of females are adults, => 80/100×5x = 5200 => 5x = 6500 => x = 1300 Total population = 4x + 5x = 9x = 9 ×1300 = 11700
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What will be the ratio of simple interest earned on certain amount at the same rate of interest for 5 years and that for 10 years?
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The compound interest (compounded annually) on Rs 8200 for 2 years at R% p.a is Rs 1722. Had the rate of interest been (R+10)% p.a what would have been ...
If a sum when placed at compound interest grows to Rs.6,400 in 2 yrs and to Rs. 8,000 in 3 yrs, find the rate percent p.a.
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